The game has the same old Battalion Wars 1 Units but also now have the Dreadnought, Battleship, Frigate and the Submarine units.
Grunt
Good in numbers, perfect for infantry, great for capturing structures and weak against tanks.
In nearly all of the missions these units are used as friendly and an enemy unit.
To capture buildings or just jump, shake the 
upwards.
Bazooka Vets
Elite troopers meant for tanks, any enemy defense tower and most ground foes. Uncharged shots are easily dodged by all infantry.
Hold down the B Button for a charged shot. Charge shots do more damage and has longer range.
Anti Air Vet
Elite anti air troops that can down all aircraft in seconds but ineffective against ground foes.
Introduce because AA Vehicles are quite bulky at small spaces and Frigates are AA only at the sea.
Even for good anti air unit the unit can be easily be killed by Gunships and Bombers if used improperly.
Also Hold down the B Button to launch a salvo of Rockets. The more charged the shot is the more missiles the gun fires.
Flame Vets
Soldiers that are very effective against infantry even if they are behind sandbags. Hold Down the B Button to keep on continuous burning.
Expect Tanks are effective against them.
Assault Vets
Elite Troopers that are ideal against light vehicles and infantry.
Empress Qa-Len points out these Vets are elite troopers.
Hold Down the B Button for Rapid fire Attacking with the Assault Rifle but dont let the guns overheat.
Mortar Vet
Good for attacking light vehicles and infantry in cover.
Lord Ferrok Owns these Vets for his personal guard.
Introduced in the Flashback campaign where these troops are used for sandbags.
Same as Bazooka Vet. Hold down the B button to do a charge shot and do more damage. The more charged the shot is the more range and damage the shot does.
Light Tank
The standard tanks of most armies except the Iron Legion. Fragile against Heavy tanks and killed in one shot by Battlestations.
First Introduce in Mission 2 as a foe but latter on a common enemy and controllable unit in future campaigns.
Recon
Fast and armed with chainguns.
Introduce in the 4th Mission in the Solar Empire Campaign where ir must be use to destroy 3 missile silos.
Heavy Tank
A more powerful version of the Light tank but slower and weak to Bazooka Vets.
Lord Ferrok used these tanks as the standard tank division but the Heavy tank is available to all factions.
Introduce in Mission two where it is seen bombed by a bomber when Pierce captures the Docks. A tough foe and more common enemy and rarely used.
AA Vehicle
Used for aircraft but all ground foes like Bazooka Vets are a threat to it.
In the campaign the Solar Empire used the AA Vehicle alot.
Introduce in Mission 1 where it must be protected so they can shoot bombers down with.
Artillery
Foes that must be dealt with up close or from the air. These units are effective against Naval Units and most targets that dont come up close or that are aircraft.
Used by all factions including the Anglo Isles.
Introduce in Solar Empire Mission 3 where two of them must be destroyed.
Battlestations
Sometimes usable by the player. Sometimes missions require that the Battlestation not be destroyed or the mission will fail. Expect the tank to be slow.
Introduced in the Prologue Mission where the Staff Bearer must destroy one and in a flashback campaign the player used it against all ground forces.
Battleship
Powerful ships that got heavy armour and long range cannons but hates submarines.
First introduced in Solar Empire Mission 5 Repeling the Enemy but latter fought as a foe a few times.
The player finds it easier to control all naval units if they change camera view with the C Button.
Gunship
There are two type of gunships. Propeller Gunships and the VTOL Gunships. Both type of Gunships perform the same role.
Good against all Ground, Naval and Infantry units but weak to fighters and AA units.
Introduce in a flashback campaign.
Also Gunships are more formidable foes than Bombers.
Point the Wii Remote up to move up and Point it down to go down but dont crash air units because Aircraft are fragile.
Strato Destroyers
Armed with Missiles for air, guns for all targets and bombs for ground but Not usable by the player.
Dreadnought
These heavy versions of the Battleship are always weak against submarines, but are much stronger than Battleships in all other aspects.
TTS Potemkin is the Tundras all conquering Ship
Submarine
Torpedo and Machine gun armed craft. It can go underwater making it unable to be attacked by any unit except for frigates who can destroy it with depth charges. A fragile unit.
First introduction in Anglo Isles Campaign Mission 2.
Shake the nunchuk Downward to dive and avoid being seen by everything but subs and frigates.
Frigate
Fires Dept charges against subs and AA missiles at aircraft
When the Player targets and attack a Submerged sub it fores a dept charge instead of its regular AA Missile but if fires at aircraft means AA missile.
Fighters
These aircraft are good against all aircraft and do barrel rolls against missiles.
Used by all factions but mostly the Anglo Isles.
Turn the Wii Remote left or right to turn fighters and bombers but tilt the Nunchuk and the Remote at the same time to do barrel rolls which dodge missile lock.
Bombers
These units are perfect for ground foes. Introduce in Mission 1 as slow foes for AA vehicles but latter missions where bombers proven to be quite powerful. Always use the C button to see your bombing runs and again with all air units fly low to dodge missiles and dont crash them. Also in some missions these planes are critical against certain situations like enemy Battleships.
Defense Structures
MG Towers and MG Nests are armed with only Machine Guns but a CO claims that MG Towers have a blind spot beneath them.
RPG Towers work against tanks but beware of Battlestation Super Tanks and Bazooka Vets.
AA Towers Cause trouble to aircraft especially gunships.
Sea Forts Cause problems at the sea with AA guns and RPG Towers but Battleships are perfect for these enemy forts.
Forcefield Generators block movement for only ground units. Aircraft can fly over them.
Sandbags are cover points for infantry and defense against small arms fire. Mortar, Tanks, artillery and aircraft are perfect against them.
Facilities
Capture facilities to get reinforcements. Facilities are new in Battalion Wars 2. Also expect the enemy to counter attack if any facility is captured.
Barracks reinforces all infantry of all types.
HQ must not be captured by enemies or missions will end in bitter defeat. Provides Grunts.
Airbase reinforces aircraft.
Docks reinforces naval units.
Factories always reinforces Tanks.